Siemens TS2000, Руководство по обслуживанию, Страница: 12 / 65

TS2000 Service Manual RD7409290-0 Rev. F
2-2
2.1.2 Main features:
•
Increased accuracy in the detection of early breast cancer
•
Real-time impedance imaging with improved frequency
range
•
Increased measurement resolution
•
Identification of tissue variation location (based on
sectors)
•
Non-invasive technique
•
Safe method of detection - presenting no significant risk
to patient or operator
•
Patient experiences no discomfort or sensation during
procedure
•
More affordable system and examination costs
•
Minimal training required for the operator
•
Age not an inhibiting factor in the accuracy of the results
(works well in younger women with dense breast tissue)
TS2000 provides a real-time, two-dimensional visual display of local
variations in tissue electrical conductance and capacitance. Tissue
changes associated with cancer cause a significant change in local
dielectric properties. In the human breast, the electric impedance
(conductance and capacitance) of cancerous tissue is typically 20-40
times lower than in normal tissue when measured at appropriate
frequencies. The dramatic changes in electrical impedance stem from
cytological and histological changes that relate to the cellular water
content, the amount of intracellular fluid, membrane properties, the
packing density and orientation of the cells. These changes in the
electrical impedance of the cancerous tissue can be visualized and
identified using the T-Scan system.
Similar, though less dramatic changes are also seen in pre-cancerous
abnormal conditions such as atypical hyperplasia, giving T-Scan a
potential role in identifying high-risk patients before cancer develops.
The system utilizes a non-invasive approach. A probe is gently
pressed against the breast to measure low-level electrical currents
generated across a spectrum of frequencies by an electrode held in the
patient’s hand. The T-Scan image that is produced is divided into
sectors allowing for immediate location identification and
measurement of any tissue variations.
TS2000 is safe! The T-Scan method of detection is non-invasive, uses
no radiation and complies with electrical safety standards. The system
uses low voltages and currents for measurement, which cause no
SPB7-520.840.01.01.02